Materials scientists seek to develop better lithium (Li) metal batteries by improving structural stability and reducing dendrite formation that causes battery failure. It is well-known that instability at the metal electrode-electrolyte interface causes lithium dendrite growth, leading to short-circuiting and formation of inactive lithium. New electrolyte designs that control lithium deposition during cycling may solve these issues. Researchers are investigating liquid crystalline (LC) electrolytes under different conditions at MAX IV’s ForMAX beamline to determine whether these electrolytic materials are possible to align on demand. Successful results hold promise to propel the development of Li metal batteries as a next-generation power solution for electric vehicles and energy storage systems.
A path to polymerize metallic hydrogen?
An international research group reports in Nature the observation of the phase transition of a hexagonal close-packed (HCP) crystal structure of hydrogen to a 6-fold larger hydrogen supercell. The findings describe polymerization activity at extreme pressures which reveals how atoms arrange themselves in solid hydrogen and offers clues to the formation of metallic hydrogen. The study includes X-ray diffraction (XRD) data from MAX IV’s NanoMAX beamline.
MAX IV battery matrix: kicked-off
Battery researchers across Sweden gathered last week (19/3) to kickstart the Battery matrix at MAX IV. Researchers came from various universities in Sweden, including Chalmers University, Uppsala University, Linköping University, and Lund University. Led by MAX IV’s beamline scientists Robert Temperton and Justus Just, the workshop focus on engaging discussions for a better support toward the battery research community. Other MAX IV’s scientists and functions, including the facility’s Science Director were also present.
A unifying theory of superconductivity: Finding common symmetry
A global goal of physics is greater knowledge of the mechanism of superconductivity. A research group from China and the United Kingdom recently reported in Nature Physics the pairing symmetry of iron-based superconductor KFe2As2, which contains only hole pockets on the fermi surface. The result, which includes measurements at BLOCH beamline, brings science closer to a unified theory of unconventional superconductivity for iron-based materials.